"Debian is the 'mother' distro to many 'children' derivative distros, including Ubuntu. Sometimes those derivatives give back to the upstream, but it's not always easy. A new effort called DEX is aiming to improve how derivative bits are merged upstream."

With the worse happening I did not mean that Ubuntu will succeed in getting their way with having patches accepted, but just that a bitchfight will follow, as Debian developers won't (rightfully!) accept what is not good for Debian.